As an extension, support incomplete types in the unordered containers to match what we already do in the associative containers. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@146376 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/unordered_map b/include/unordered_map index 3b1701e..15243f6 100644 --- a/include/unordered_map +++ b/include/unordered_map
@@ -325,7 +325,7 @@ _LIBCPP_BEGIN_NAMESPACE_STD -template <class _Tp, class _Hash, bool = is_empty<_Hash>::value +template <class _Key, class _Tp, class _Hash, bool = is_empty<_Hash>::value #if __has_feature(is_final) && !__is_final(_Hash) #endif @@ -333,6 +333,8 @@ class __unordered_map_hasher : private _Hash { + typedef pair<typename remove_const<_Key>::type, _Tp> _Pp; + typedef pair<const _Key, _Tp> _Cp; public: _LIBCPP_INLINE_VISIBILITY __unordered_map_hasher() @@ -345,17 +347,23 @@ _LIBCPP_INLINE_VISIBILITY const _Hash& hash_function() const _NOEXCEPT {return *this;} _LIBCPP_INLINE_VISIBILITY - size_t operator()(const _Tp& __x) const + size_t operator()(const _Pp& __x) const {return static_cast<const _Hash&>(*this)(__x.first);} _LIBCPP_INLINE_VISIBILITY - size_t operator()(const typename _Tp::first_type& __x) const + size_t operator()(const _Cp& __x) const + {return static_cast<const _Hash&>(*this)(__x.first);} + _LIBCPP_INLINE_VISIBILITY + size_t operator()(const _Key& __x) const {return static_cast<const _Hash&>(*this)(__x);} }; -template <class _Tp, class _Hash> -class __unordered_map_hasher<_Tp, _Hash, false> +template <class _Key, class _Tp, class _Hash> +class __unordered_map_hasher<_Key, _Tp, _Hash, false> { _Hash __hash_; + + typedef pair<typename remove_const<_Key>::type, _Tp> _Pp; + typedef pair<const _Key, _Tp> _Cp; public: _LIBCPP_INLINE_VISIBILITY __unordered_map_hasher() @@ -368,14 +376,17 @@ _LIBCPP_INLINE_VISIBILITY const _Hash& hash_function() const _NOEXCEPT {return __hash_;} _LIBCPP_INLINE_VISIBILITY - size_t operator()(const _Tp& __x) const + size_t operator()(const _Pp& __x) const {return __hash_(__x.first);} _LIBCPP_INLINE_VISIBILITY - size_t operator()(const typename _Tp::first_type& __x) const + size_t operator()(const _Cp& __x) const + {return __hash_(__x.first);} + _LIBCPP_INLINE_VISIBILITY + size_t operator()(const _Key& __x) const {return __hash_(__x);} }; -template <class _Tp, class _Pred, bool = is_empty<_Pred>::value +template <class _Key, class _Tp, class _Pred, bool = is_empty<_Pred>::value #if __has_feature(is_final) && !__is_final(_Pred) #endif @@ -383,6 +394,8 @@ class __unordered_map_equal : private _Pred { + typedef pair<typename remove_const<_Key>::type, _Tp> _Pp; + typedef pair<const _Key, _Tp> _Cp; public: _LIBCPP_INLINE_VISIBILITY __unordered_map_equal() @@ -395,24 +408,41 @@ _LIBCPP_INLINE_VISIBILITY const _Pred& key_eq() const _NOEXCEPT {return *this;} _LIBCPP_INLINE_VISIBILITY - bool operator()(const _Tp& __x, const _Tp& __y) const + bool operator()(const _Pp& __x, const _Pp& __y) const {return static_cast<const _Pred&>(*this)(__x.first, __y.first);} _LIBCPP_INLINE_VISIBILITY - bool operator()(const typename _Tp::first_type& __x, const _Tp& __y) const - {return static_cast<const _Pred&>(*this)(__x, __y.first);} + bool operator()(const _Pp& __x, const _Cp& __y) const + {return static_cast<const _Pred&>(*this)(__x.first, __y.first);} _LIBCPP_INLINE_VISIBILITY - bool operator()(const _Tp& __x, const typename _Tp::first_type& __y) const + bool operator()(const _Pp& __x, const _Key& __y) const {return static_cast<const _Pred&>(*this)(__x.first, __y);} _LIBCPP_INLINE_VISIBILITY - bool operator()(const typename _Tp::first_type& __x, - const typename _Tp::first_type& __y) const + bool operator()(const _Cp& __x, const _Pp& __y) const + {return static_cast<const _Pred&>(*this)(__x.first, __y.first);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Cp& __x, const _Cp& __y) const + {return static_cast<const _Pred&>(*this)(__x.first, __y.first);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Cp& __x, const _Key& __y) const + {return static_cast<const _Pred&>(*this)(__x.first, __y);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Key& __x, const _Pp& __y) const + {return static_cast<const _Pred&>(*this)(__x, __y.first);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Key& __x, const _Cp& __y) const + {return static_cast<const _Pred&>(*this)(__x, __y.first);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Key& __x, const _Key& __y) const {return static_cast<const _Pred&>(*this)(__x, __y);} }; -template <class _Tp, class _Pred> -class __unordered_map_equal<_Tp, _Pred, false> +template <class _Key, class _Tp, class _Pred> +class __unordered_map_equal<_Key, _Tp, _Pred, false> { _Pred __pred_; + + typedef pair<typename remove_const<_Key>::type, _Tp> _Pp; + typedef pair<const _Key, _Tp> _Cp; public: _LIBCPP_INLINE_VISIBILITY __unordered_map_equal() @@ -425,17 +455,31 @@ _LIBCPP_INLINE_VISIBILITY const _Pred& key_eq() const _NOEXCEPT {return __pred_;} _LIBCPP_INLINE_VISIBILITY - bool operator()(const _Tp& __x, const _Tp& __y) const + bool operator()(const _Pp& __x, const _Pp& __y) const {return __pred_(__x.first, __y.first);} _LIBCPP_INLINE_VISIBILITY - bool operator()(const typename _Tp::first_type& __x, const _Tp& __y) const - {return __pred_(__x, __y.first);} + bool operator()(const _Pp& __x, const _Cp& __y) const + {return __pred_(__x.first, __y.first);} _LIBCPP_INLINE_VISIBILITY - bool operator()(const _Tp& __x, const typename _Tp::first_type& __y) const + bool operator()(const _Pp& __x, const _Key& __y) const {return __pred_(__x.first, __y);} _LIBCPP_INLINE_VISIBILITY - bool operator()(const typename _Tp::first_type& __x, - const typename _Tp::first_type& __y) const + bool operator()(const _Cp& __x, const _Pp& __y) const + {return __pred_(__x.first, __y.first);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Cp& __x, const _Cp& __y) const + {return __pred_(__x.first, __y.first);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Cp& __x, const _Key& __y) const + {return __pred_(__x.first, __y);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Key& __x, const _Pp& __y) const + {return __pred_(__x, __y.first);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Key& __x, const _Cp& __y) const + {return __pred_(__x, __y.first);} + _LIBCPP_INLINE_VISIBILITY + bool operator()(const _Key& __x, const _Key& __y) const {return __pred_(__x, __y);} }; @@ -632,8 +676,8 @@ private: typedef pair<key_type, mapped_type> __value_type; - typedef __unordered_map_hasher<__value_type, hasher> __hasher; - typedef __unordered_map_equal<__value_type, key_equal> __key_equal; + typedef __unordered_map_hasher<key_type, mapped_type, hasher> __hasher; + typedef __unordered_map_equal<key_type, mapped_type, key_equal> __key_equal; typedef typename allocator_traits<allocator_type>::template #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES rebind_alloc<__value_type> @@ -1256,8 +1300,8 @@ private: typedef pair<key_type, mapped_type> __value_type; - typedef __unordered_map_hasher<__value_type, hasher> __hasher; - typedef __unordered_map_equal<__value_type, key_equal> __key_equal; + typedef __unordered_map_hasher<key_type, mapped_type, hasher> __hasher; + typedef __unordered_map_equal<key_type, mapped_type, key_equal> __key_equal; typedef typename allocator_traits<allocator_type>::template #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES rebind_alloc<__value_type> 